A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6150-01-252-6933
NSN 6110-01-619-8262
NSN 5915-00-378-5585
NSN 6105-01-360-6793
NSN 6135-00-246-0324
NSN 5855-01-589-7273
NSN 6240-01-269-3146
NSN 5960-00-793-4397
NSN 5905-01-544-9639
NSN 6220-01-550-8240
NSN 5935-00-468-6074
NSN 6650-00-617-7573